CN116078017A - Method for filtering and draining mud entering cabin of trailing suction hopper dredger and implementation device thereof - Google Patents
Method for filtering and draining mud entering cabin of trailing suction hopper dredger and implementation device thereof Download PDFInfo
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- CN116078017A CN116078017A CN202211624110.6A CN202211624110A CN116078017A CN 116078017 A CN116078017 A CN 116078017A CN 202211624110 A CN202211624110 A CN 202211624110A CN 116078017 A CN116078017 A CN 116078017A
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- mud
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- 238000001914 filtration Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000001105 regulatory effect Effects 0.000 claims abstract description 26
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims description 22
- 239000002689 soil Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000000706 filtrate Substances 0.000 claims description 9
- 230000035699 permeability Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000000926 separation method Methods 0.000 description 8
- 239000010419 fine particle Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000004746 geotextile Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000013049 sediment Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/10—Pipelines for conveying excavated materials
Abstract
A method for filtering and draining mud in a cabin of a trailing suction hopper dredger in the technical field of dredging and an implementation device thereof change part of the cabin inlet pipe into a filtering drain pipe with a filtering medium, and drain low-concentration mud in the mud through the filtering medium; and the filtering speed of the low-concentration slurry is adjusted by adjusting the pressure difference between the front and the rear of the filtering medium. The implementation device comprises a water permeable pipe, a water drain pipe, a pressure regulating valve and a pressure sensor; the water permeable pipe is divided into three layers: the inner layer is a filter layer with a filter medium, the middle layer is a drainage layer, and the outer layer is a frame layer; the drain pipe is communicated with the middle drainage layer of the permeable pipe; the rear end of the pressure regulating valve is connected with the cabin inlet pipe and is used for regulating the pressure difference between the inner side and the outer side of the filter medium; the pressure sensors are disposed on the inner and outer sides of the filter media. According to the invention, the cabin entering slurry is separated while the function of pipeline conveying slurry is maintained, so that the cabin entering flow of the trailing suction hopper dredger is reduced, the cabin entering slurry concentration is improved, and the cabin loading operation efficiency is improved.
Description
Technical Field
The invention relates to a mud filtering and draining method in the technical field of dredging, in particular to a mud filtering and draining method for a suction hopper dredger in a cabin and an implementation device thereof.
Background
The suction dredger is a kind of ship capable of dredging sediment and loading and unloading in river, lake and sea. One construction cycle of the trailing suction hopper dredger comprises three different operation processes of sailing to a construction area, carrying out sediment excavation loading cabin and sailing to a mud throwing area for mud discharge. The reciprocating distance between the construction area and the mud throwing area is often longer, so that the economic efficiency is improved, the cost is saved, the loading cabin overflow construction technology is generally adopted in the construction of the trailing suction hopper dredger, and the ship loading capacity is improved as much as possible.
The mud cabin is an important component of the trailing suction hopper dredger, the cabin capacity of the trailing suction hopper dredger is an important index for measuring the economic performance of the hopper dredger, and the structure of the mud cabin is shown in figure 1, and the mud cabin comprises a mud cabin bottom, a mud cabin side cabin, a mud cabin coaming, a mud cabin deck and the like. The existing loading overflow process of the trailing suction hopper dredger adopts a solid-liquid sedimentation separation technology taking gravity as driving force, solid particles in the inlet slurry settle and deposit at the bottom of the mud cabin under the action of gravity, and the upper-layer low-concentration slurry is discharged out of the mud cabin through an overflow cylinder or an overflow weir, so that the loading capacity of the ship is improved, and the overall construction efficiency is improved. Soil properties, in-cabin flow fields, solid particle distribution are determining factors affecting the cabin-overflow effect. The medium coarse sand and gravel coarse particle soil is easy to settle, and the cabin filling overflow effect is obvious; and fine particle soil such as silt, silt and the like is difficult to precipitate, and the cabin filling overflow effect is not ideal.
The filtering separation is another solid-liquid separation technology for separating solid-liquid mixture by utilizing a filtering medium, and can be used for the cabin loading operation process of the drag suction dredger, and the separation and discharge of mud in the cabin are realized through the filtering material, so that the effective loading capacity of the mud cabin is improved. There has heretofore been no study and application in the dredging industry of filtration separation technology in a capsule overflow process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for filtering and draining cabin-entering slurry of a trailing suction hopper dredger and an implementation device thereof, which realize the separation and discharge of the cabin-entering slurry through a filter medium, reduce the flow rate of the cabin-entering slurry and increase the concentration of the cabin-entering slurry, thereby improving the loading capacity of the ship.
The invention is realized by the following technical scheme:
the invention provides a method for filtering and draining mud in a cabin of a trailing suction hopper dredger, which comprises the steps of changing part of the cabin inlet pipe into a filtering drain pipe with a filtering medium, and draining low-concentration mud in the mud through the filtering medium; and the filtering speed of the low-concentration slurry is adjusted by adjusting the pressure difference between the front and the rear of the filtering medium.
The invention also provides a device for implementing the slurry filtering and draining method in the drag suction dredger cabin, which comprises a water permeable pipe, a drain pipe, a pressure regulating valve and a pressure sensor; flanges are arranged at two ends of the water permeable pipe, the front end of the water permeable pipe is connected with the cabin inlet pipe, and the rear end of the water permeable pipe is connected with the front end of the pressure regulating valve; the water permeable pipe is divided into three layers: the inner layer is a filter layer with a filter medium and is used for separating the cabin entering slurry; the middle layer is a drainage layer and is used for providing a drainage channel for the separated low-concentration slurry; the outer layer is a frame layer for supporting the whole pipeline structure and collecting filtrate; the drain pipe is communicated with the cavity between the permeable pipe filter layer and the frame layer and is used for discharging filtrate to a designated area; the rear end of the pressure regulating valve is connected with the cabin inlet pipe and is used for regulating the pressure difference between the inner side and the outer side of the filter medium; the pressure sensor is arranged on the inner side and the outer side of the filter medium and is used for monitoring the pressure of the inner side and the outer side of the filter medium.
Further, the implementation device of the invention also comprises a pipe valve; a pipe valve is arranged on the drain pipe for regulating the displacement of filtrate.
Still further, in the practice of the present invention, the filter media is geotextile cloth.
Furthermore, in the invention, the filter layer adopts a pipeline structure made of geotechnical filter cloth with good water permeability, the geotechnical filter cloth meets the functional requirements of strength, soil conservation and water permeability, and proper specification and model are selected according to the quality grain size grading and emission requirements of the dredged soil.
Further, in the present invention, the drainage layer is made of a drainage plate material having a drainage function, and the heads of the drainage plate material are circumferentially arranged along the water collecting pipe 4 to form annular multi-channel three-dimensional drainage.
Furthermore, in the present invention, the frame layer is preferably made of a high-strength, non-deformable, and abrasion-resistant material.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the cabin-entering mud filtering and draining device provided by the invention separates mud while conveying the mud, and drains the mud mixed by water and trace fine-particle sediment, so that the cabin-entering mud flow is reduced, and the cabin-entering mud concentration is improved.
Secondly, the invention can combine the cabin-overflow construction process, improve the cabin-overflow construction efficiency and shorten the cabin-overflow construction time.
Thirdly, the invention can be used for loading cabin operations of fine particle soil and the like which are not suitable for adopting a cabin loading-overflow construction process, and the loading capacity and the operation efficiency of the ship are improved; by selecting proper filter medium materials, the particle size and the content of fine particle soil of the discharged slurry are controlled, and the ecological environment around the construction area can be better protected.
Fourth, the slurry filtering and draining technology of the invention can improve the cabin concentration by more than 10% when the fine particle soil is constructed, and the technology is also suitable for dredging and hydraulic filling pipelines with application requirements and conditions, reduces the pipeline conveying flow through filtering and draining, improves the conveying concentration, and is beneficial to improving the operation efficiency of a dredging ship conveying operation system and reducing the operation energy consumption.
Drawings
FIG. 1 is a schematic view of the installation site of the entire filter device in an embodiment of the present invention;
FIG. 2 is a schematic structural view of the whole in-tank mud filtering and draining device in an embodiment of the invention;
FIG. 3 is an enlarged partial view of the front end portion of FIG. 2;
FIG. 4 is an enlarged partial view of the rear end portion of FIG. 2;
FIG. 5 is a cross-sectional view of a middle portion of a filter drain device according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a locking stop portion of a filter drain in accordance with an embodiment of the present invention;
FIG. 7 is a flow chart of an implementation process of an embodiment of the present invention;
reference numerals in the drawings: 1. perforated pipe 2, geotechnical filter cloth 3, annular drain bar 4, collector pipe 5, sealed lid 6, locking stopper 7, drain pipe 8, pressure regulating valve 9, pressure sensor.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, and the embodiments and specific operation procedures of the present invention are given by this embodiment on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.
Examples
The implementation device of the invention is shown in figures 1 to 6, and comprises a perforated pipe 1 with flange heads at two ends, geotechnical filter cloth 2, an annular drain plate 3, a water collecting pipe 4, a sealing cover 5, a locking limiter 6, a drain pipe 7, a pressure regulating valve 8, a pressure sensor 9 and a control console; the front end of the perforated pipe 1 is connected with a cabin loading pipe on the ship, the rear end of the perforated pipe 1 is connected with the front end of the pressure regulating valve 8, the rear end of the pressure regulating valve 8 is connected with the cabin loading pipe on the ship, and the installation position of the whole filtering device is shown as a black area on the cabin loading pipe in fig. 1. The geotechnical filter cloth 2 is coated on the surface of the perforated pipe 2 and is fixed by the locking limiter 6, so that the geotechnical filter cloth and the perforated pipe cannot be separated due to sliding. The water collecting pipe 4 is arranged on the outer side of the geotechnical filter cloth 2 and is connected with the locking limiter 6 through the sealing cover 5, and the sealing cover 5 can ensure that filtrate in the water collecting pipe 4 cannot flow out from two ends. The annular drainage plate 3 is composed of a plurality of drainage plates, the heads of which are circumferentially arranged along the water collecting pipe 4 and fixedly arranged in the water collecting pipe 4, thereby forming annular multi-channel three-dimensional drainage. The inner surface of the sealing cover 5 is kept in contact with the outer surface of the locking limiter 6, and the locking limiter 6 plays a limiting role to prevent the water collecting pipe 4 from sliding. The bottom of the pipeline at the tail end of the water collecting pipe 4 is provided with a hole, a drain pipe 7 is connected with the cavity between the geotechnical filter cloth 2 and the annular drain plate 3, and filtrate collected in the water collecting pipe 4 is discharged into a designated area through the drain pipe 7. A pipe valve is arranged on the drain pipe 7, and the filtrate discharge capacity can be adjusted. The pressure regulating valve 8 is connected with the porous pipe 1 and is fixed at the tail part of the device for regulating the pressure difference delta P; the pressure in the device is regulated through the pressure regulating valve 8, so that the pressure in the pipe can meet the requirement of filtering and draining, and the pressure difference can be prevented from damaging the percolating material of the geotechnical filter pipe too much. The pressure sensors 9 are arranged on the inner walls of the perforated pipe 1 and the water collecting pipe 4, respectively.
In the invention, the perforated pipe 1 and the geotechnical filter cloth 2 can be regarded as a filter layer after being combined together, the annular drain plate 3 can be regarded as a drain layer, and the water collecting pipe 4 can be regarded as a frame layer.
According to the invention, the cabin inlet pipe (part) is changed into a filtering drain pipe with a filtering medium according to the filtration criterion of the geosynthetic material, and through filtering and draining, the cabin inlet flow is reduced, and the cabin inlet slurry concentration and the cabin loading operation efficiency are improved.
The velocity V of the liquid through the filter media geotextile cloth 2 can be calculated according to the following formula, where V is the filtration velocity, K is the filtration coefficient of the geotextile cloth 2, Δp is the pressure difference between the inside and the outside of the geotextile cloth 2, and d is the thickness of the filter media geotextile cloth 2.
In the invention, the filter medium is the geotechnical filter cloth 2, has good filtering characteristics, ensures that water in slurry flows through, effectively intercepts soil particles, and is ideal filter medium, and the filtering capacity of the filter medium is related to the aperture of the geotechnical filter cloth 2. The discharge of the low-concentration mud (containing trace fine-particle sediment) in the mud can be accelerated by the increase of the pressure difference delta P during filtration and separation. For the tank filter pipe, the pressure difference deltap is mainly the pressure difference between the pressure generated in the pipeline when the mud pump is operated and the pressure generated in the discharging process of the discharged slurry. The pressure difference deltaP in the pipeline can be regulated by the pressure regulating valve.
In the invention, the porous tube 1 is made of wear-resistant material, and the side wall of the porous tube is provided with small holes. The geotechnical filter cloth 2 mainly meets the functional requirements of strength (including stretching and bursting), soil conservation, water permeability, anti-blocking performance and wear resistance, and selects proper specification and model according to the quality grain size grading and emission requirements of the dredged soil. The annular drain plate 3 is preferably made of a drain plate material with a drain function, and has a structure in which a synthetic material core material with a concave-convex section shape and continuous drain grooves is arranged inside. The water collecting pipe 4 is preferably made of a high-strength, non-deformable and wear-resistant pipeline.
The pressure sensor 9 is arranged in the cabin inlet mud filtering and draining device, when the cabin inlet mud filtering and draining device works, the pressure sensor transmits pressure data to the control console, the control console analyzes and processes the data, and if the pressure value is not in a normal working interval, the control console can remotely control the pressure regulating valve 8 to regulate the pressure. Once the data is abnormal and the alarm is given, the control console can send out an instruction, immediately stop the work of the mud pump, and conduct equipment investigation and maintenance.
The implementation flow chart of the invention is shown in fig. 7, when the drag suction dredger starts to construct, the mud pump is started, and when mud enters the filtering and draining device, the mud in the device starts to be subjected to solid-liquid separation under the action of internal and external pressure difference, and most of mud and sand in the mud continuously flow along the axis direction of the pipeline and pass through the filtering and draining device. The water body and the trace fine particle sediment change the movement direction under the action of pressure, pass through the geotechnical filter cloth 2, enter the annular drain plate 3 and flow along the drain groove, and finally are discharged into a designated area through the drain pipe 7.
The pressure difference delta P in the filtering and draining device is monitored and regulated by a pressure monitoring system, wherein a pressure sensor 9 is arranged in the device and used for monitoring the pressure difference delta P inside and outside the geotechnical filter cloth in real time and transmitting data to a control console, and when the pressure difference delta P is abnormal, the control console can regulate the pressure of the device by a pressure regulating valve 8 so that the pressure reaches a rated pressure value.
The foregoing describes a specific mode of operation of the present invention. It is to be understood that the invention is not limited to the particular manner of operation described hereinabove, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without affecting the spirit of the invention.
Claims (7)
1. A method for filtering and draining mud in a cabin of a trailing suction hopper dredger is characterized in that part of the cabin inlet pipe is changed into a filtering drain pipe provided with a filtering medium, and low-concentration mud in the mud is drained through the filtering medium; and the filtering speed of the low-concentration slurry is adjusted by adjusting the pressure difference between the front and the rear of the filtering medium.
2. A device for implementing the method for filtering and draining mud in a hold of a trailing suction hopper dredger according to claim 1, which is characterized by comprising a water permeable pipe, a water draining pipe, a pressure regulating valve and a pressure sensor;
flanges are arranged at two ends of the permeable pipe, the front end of the permeable pipe is connected with the cabin inlet pipe, and the rear end of the permeable pipe is connected with the front end of the pressure regulating valve;
the structure of the permeable pipe is divided into three layers: the inner layer is a filter layer with a filter medium and is used for separating the cabin entering slurry; the middle layer is a drainage layer and is used for providing a drainage channel for the separated low-concentration slurry; the outer layer is a frame layer for supporting the whole pipeline structure and collecting filtrate;
the drainage pipe is communicated with the cavity between the permeable pipe filtering layer and the frame layer and is used for discharging filtrate to a designated area;
the rear end of the pressure regulating valve is connected with the cabin inlet pipe and is used for regulating the pressure difference between the inner side and the outer side of the filter medium;
the pressure sensors are arranged on the inner side and the outer side of the filter medium and are used for monitoring the pressure of the inner side and the outer side of the filter medium.
3. The device for implementing the method for filtering and draining the mud in the tank of the trailing suction hopper dredger according to claim 2, which is characterized by further comprising a pipe valve; a pipe valve is arranged on the drain pipe for regulating the displacement of filtrate.
4. The device for implementing the method for filtering and draining the mud in the hold of the trailing suction hopper dredger according to claim 2, wherein the filter medium is geotechnical filter cloth.
5. The device for implementing the method for filtering and draining the mud in the cabin of the trailing suction hopper dredger according to claim 2, wherein the filter layer adopts a pipeline structure made of geotechnical filter cloth with good filtering and water permeability, the geotechnical filter cloth meets the functional requirements of strength, soil conservation and water permeability, and a proper specification and model are selected according to the grain size grading and the emission requirements of the dredged soil.
6. The device for implementing the method for filtering and draining the mud in the cabin of the trailing suction hopper dredger according to claim 2, wherein the drainage layer is made of drainage plates with drainage function, and the heads of the drainage plates are circumferentially arranged along the water collecting pipe 4 to form annular multi-channel three-dimensional drainage.
7. The device for implementing the method for filtering and draining the mud in the cabin of the trailing suction hopper dredger according to claim 2, wherein the frame layer is made of a high-strength, non-deformable and wear-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211624110.6A CN116078017A (en) | 2022-12-15 | 2022-12-15 | Method for filtering and draining mud entering cabin of trailing suction hopper dredger and implementation device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211624110.6A CN116078017A (en) | 2022-12-15 | 2022-12-15 | Method for filtering and draining mud entering cabin of trailing suction hopper dredger and implementation device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116078017A true CN116078017A (en) | 2023-05-09 |
Family
ID=86203557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211624110.6A Pending CN116078017A (en) | 2022-12-15 | 2022-12-15 | Method for filtering and draining mud entering cabin of trailing suction hopper dredger and implementation device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116078017A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4250034A (en) * | 1978-01-26 | 1981-02-10 | Ballast-Nedam Groep N.V. | Transport conduit |
| JPH0711668A (en) * | 1993-06-25 | 1995-01-13 | Toyo Constr Co Ltd | Dehydration transport pipe for dredged slurry |
| JPH08284202A (en) * | 1995-04-13 | 1996-10-29 | Moburon Sekkei Jimusho:Kk | Dredging method using water pressure and construction of dredger |
| CN101432057A (en) * | 2006-05-02 | 2009-05-13 | 比吉尔·尼尔森 | Apparatus and method for separating and filtering particle and organic matter in high-flux flowing liquid |
| CN205973849U (en) * | 2016-08-27 | 2017-02-22 | 江苏东方生态清淤工程有限公司 | Float quick purifier of formula top layer sewage |
| CN109339142A (en) * | 2018-10-25 | 2019-02-15 | 河海大学 | A kind of dress of trailing suction hopper dredger refutes structure |
| CN110512675A (en) * | 2019-10-23 | 2019-11-29 | 鲁东大学 | A kind of environment-protective desilting dredger and its application method |
| CN209837138U (en) * | 2019-04-17 | 2019-12-24 | 赵浩程 | Device for improving concentration of silt in loading cabin of trailing suction hopper dredger |
| CN212476483U (en) * | 2020-05-27 | 2021-02-05 | 中泰信达环保科技(武汉)有限公司 | River silt environmental protection processing system |
| CN113582505A (en) * | 2021-08-04 | 2021-11-02 | 江苏科技大学 | Continuous type high-water-content mud decrement hardening system and method |
-
2022
- 2022-12-15 CN CN202211624110.6A patent/CN116078017A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4250034A (en) * | 1978-01-26 | 1981-02-10 | Ballast-Nedam Groep N.V. | Transport conduit |
| JPH0711668A (en) * | 1993-06-25 | 1995-01-13 | Toyo Constr Co Ltd | Dehydration transport pipe for dredged slurry |
| JPH08284202A (en) * | 1995-04-13 | 1996-10-29 | Moburon Sekkei Jimusho:Kk | Dredging method using water pressure and construction of dredger |
| CN101432057A (en) * | 2006-05-02 | 2009-05-13 | 比吉尔·尼尔森 | Apparatus and method for separating and filtering particle and organic matter in high-flux flowing liquid |
| CN205973849U (en) * | 2016-08-27 | 2017-02-22 | 江苏东方生态清淤工程有限公司 | Float quick purifier of formula top layer sewage |
| CN109339142A (en) * | 2018-10-25 | 2019-02-15 | 河海大学 | A kind of dress of trailing suction hopper dredger refutes structure |
| CN209837138U (en) * | 2019-04-17 | 2019-12-24 | 赵浩程 | Device for improving concentration of silt in loading cabin of trailing suction hopper dredger |
| CN110512675A (en) * | 2019-10-23 | 2019-11-29 | 鲁东大学 | A kind of environment-protective desilting dredger and its application method |
| CN212476483U (en) * | 2020-05-27 | 2021-02-05 | 中泰信达环保科技(武汉)有限公司 | River silt environmental protection processing system |
| CN113582505A (en) * | 2021-08-04 | 2021-11-02 | 江苏科技大学 | Continuous type high-water-content mud decrement hardening system and method |
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